Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur:

More common

Black, tarry stools

bloating or swelling of the face, arms, hands, lower legs, or feet

blurred or double vision

chest pain

chills

cough

fever

loss of taste

lower back or side pain

painful or difficult urination

pale skin

rapid weight gain

sneezing

sore mouth, tongue, or throat

tightness in the chest

tingling of the hands or feet

troubled breathing with exertion

ulcers, sores, or white spots in the mouth

unusual bleeding or bruising

unusual weight gain or loss

unusual tiredness or weakness

Less common

Anxiety

bleeding

blood in the urine or stools

burning, tingling, numbness or pain in the hands, arms, feet, or legs

confusion

difficulty with swallowing

dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position

fast, pounding, slow, or irregular heartbeat or pulse

general feeling of discomfort or illness

inability to move the arms, legs, or facial muscles

inability to speak

pain in the chest, groin, or legs, especially the calves

pinpoint red spots on the skin

rapid, shallow breathing

sensation of pins and needles

severe, sudden headache

skin itching, rash, or redness

slurred or slow speech

stabbing pain

sudden loss of coordination

sudden, severe weakness or numbness in the arms or legs

sudden, unexplained shortness of breath

sweating

swelling of the face, throat, or tongue

thickening of bronchial secretions

trouble thinking or walking

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: